Synthetic Oil
-Jeff
I now use German Castrol 0W-30.
I find alot of people that run Mobil one in these cars and swear by it haven't done any oil analysis to see what is actually happening.
Mobil 1 (10W-30 & 5W-30) is just barely a 30 weight oil and will shear down to a 20 weight in just a couple of thousand miles.
I even tried using 5 qts of 10W-30 and one qt of 15W-50, while it did make the oil thicker, the amount of wear metals in the report weren't any better.
I finally got a really good analysis out of the mobil 1 (I dumped it out at 1650 miles on the last batch as soon as I received the analysis from the previous sample.
I sampled the oil drained at the 1650 mark - sent it in and the report said I'd finally found the perfect change interval for this oil- I now run the GC for approx. 6000 mile intervals and the reports for this oil at 6000 miles are almost identical to the Mobil 1 analysis done at 1650 miles.
If you really want to learn about oil and filtering and general lubrication issues, go to
bobistheoilguy.com
You will find many questions answered here.



